Home / 21,486.77-29,654.30-12,056.75

Finding the Fourth Proportional to 21,486.77, 29,654.30 and 12,056.75

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Solution

The fourth proportional to 21,486.77, 29,654.30 and 12,056.75 is: 16,639.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,486.77 : 29,654.30 = 12,056.75 : x
  2. Step 2: Convert to fraction form
    21,486.77/29,654.30 = 12,056.75/x
  3. Step 3: Cross multiply
    21,486.77x = 29,654.30 × 12,056.75
  4. Step 4: Simplify right side
    21,486.77x = 357,534,481.53
  5. Step 5: Solve for x
    x = 357,534,481.53/21,486.77
  6. Step 6: Final answer
    x = 16,639.75

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.